Universal joint.



J. W. VAN DYKE.

UNIVERSALJOINT.

APPLICATION map NOV. 29. 1915.

Patented June 13, 1916.

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JOHN VAN DYKE, OF PHILADELPHIA, PENNSYLVANIA.

um'vnnsnr. Jomrr.

Specification of Letters Patent.

Patented June 13, 1916.

Application filed November 29, 1915. Serial No. 63,929.

To all whom it may concern: 7

Be it known that I, JOHN W. VAN DYKE, a citizen of the United States, residing in the city of Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a new and useful Universal Joint, of which the following is a specification.

'My invention relates to an universal joint through which power is transmitted from carried in yokes or similar members secured respectively to the driving and driven shafts, the intermediate member or block being provided with means of the character hereinafter described for lubricating the pin and bushing bearings; and my invention comprises a structure of the character hereinafter described by which the bearing bushings are suitably held by or secured to the shaft yokes or analogous members and adapting them and the joint as a whole for easy assemblage or replacement of parts.

For an illustration of one of the forms my invention may take, reference may be had to the accompanying drawings, in which:

Figure 1 is a side elevation of an universal joint embodying my invention. Fig. 2 is a cross sectional view taken on the line 2+2 of Fig. 1. Fig. 3 is an end elevational view of the joint shown in Fig. 1. Fig. 4 is a cross sectional view through the intermediate member or block. Fig. 5 is a plan View, partly in section, of a bushing. Fig. 6 is a plan view of a modified form of bushing. Fig. 7 is a sideelevational view of the bushing shown in Fig.6 taken at right angles thereto. Fig. 8' is an end elevational view of the bushing shown in Fig. 6. Fig. 9 is a fragmentary sectional view showing the relation of the bushing of the character shown in Fig. 6 with respect to a bearing pin, bolt and arm of a yoke.

Referring to Figs. 1 to 4. inclusive, Y'and Y are yokes secured at their hubs or sleeves S and S to the. driving and driven shafts whichare required tocooperate when their axes. are not co-incident or are at an angle with respect to -each other, the axes of the sleeves S and S being shown co-incident in Flg. 1 by way of example.

The intermediate member of block B has the preferably integral cylindrical pins or short shafts P, P whose axes are ,co-incident, and the similar pins P P with their axes co-incident but'at right angles to the 'axes of the pins P, P. Receiving these bearing pins are the bushings A, of bronze or other suitable material, which receive the bearing D STATES PATENroFFIoE.

pins and which are clamped in the bifurcate'd ends or jaws J of the yokes, these awshaving a cylindrical bore to receive the bushings A the bores being, however, circumferentially incomplete, but greater than a half circumference, leaving a gap between the lugs L, L of each jaw J. Extending through each pair of lugs L is a bolt G.

a The bushing A is recessed or grooved in its outer cylindrical surface as at. D, Fig. 5, to form a channel or groovev in which the bolt C fits. Drawing up upon or tightening the bolt C draws the lugs L toward each other to clamp the jaw J upon the bushing A, and the bolt C extending through the channel D further serves to prevent rotation of the bushing A and to prevent its displacement longitudinally of its bearing pin P.

The bushings A are shown closed at their ends E to inclose and cover the bearing pins to prevent entry of dirt or grit and to assist in the lubrication of these hearings.

The intermediate member or block B may be made by drop forging or maybe otherwise produced. It has the cavity F, Figs. 2 and 4,'which is closed at one side by the part G forming a part of the block B itself and closed at its other side by a cap H'beneath which may be provided a gasket 1. A bolt K holds the cap H snugly in position to form a'tight closure for the cavity F in which may be placed oil or other suitable lubricating material. Communicating extending longitudinally inthe inner beartate transfer of lubricant from the cavity F intothe countersink- N from which it will find its way through the clearance-O and into the grooves Q to lubricate the bearings said jaw, and means for clamping said aw of the pins P, P within the bushings A;

When the universal joint is rotating, the

transfer of lubricant outwardly to the cavi-I ties N and thence through the clearance O and into the grooves Q willbe facilitated by the centrifugal force acting upon the lu-' bricant.

I sure vGr for one side of the cavity F may.

' It will be readily understood that the clo be omitted and replaced byanother capsimilar to the cap H and hld by the bolt K.

the distance between the inner faces of the lugs L whereby upon removing-the bolt C yoke may be removed to the right or left,

and thereafter removing the. bushing A, a

Fig. 1, the space between the innerfaces of the lugs L allowing thejaw J to pass over I the bearing pin. 4

From the foregoing description it. is apparent that the'stru'ctur'e of the joint is such In Figs. 6. to '8 inclusive is illustrated a modified structure ofbushing A The'bolt is formed partly in a' lug-R of a height, Fig; 8, equal tO-orsIightIy that a, new bushing may. readily be replaced simply by removing a bolt C, withdrawing theold bushing andiinserting a. new one and replacing the bolt. And that-as a whole the universal oin't is easily; assembled or." taken apart.

groove" or channel D less than the-distance'between the inner faces of the lugs L of a yoke'jaw- J; By the em-. ploy nent of this lugD the circumferential extent of thef groove DE is greater than in a the; arrangement of Figs 1 to Qinelusive,

giving agreatersurfacepf engagement be- 'tween the bushing-ED, and:--'the-bolt-'G. LfIt 'bled"with -thebearing-pin P, bone and the.

p introducediintothe mity F. of the block #13. through troduced through-the hole a, Fig. 4,' nor1m'1ll end-of a spring 13' The-introduction of v held closed-"by a ball 6 inthe cup 0 on'tlfie x. P utPWilI raise the balI b" from its seat and for said a slot said .pin, a slotted said jaw upon said a spout .in-;

ing the spout the spring (2 willreturn the 7 of said pin from the outer end thereof into upon said bushing. r

, 2. An universal joint comprising a' block having .a bearing'pin thereon, a bushing for said pin, jaw members yielding with respect 1 to each other, said members having an mterspace into which said bushing may be inserted over and longitudinally of said pin from the outer end thereof, and means "for clamping said members against said I bushing.

- The diameters of the bearing pins P,,P is'preferably such that it is not greater than ing saidjaw upon said bush-ing, the slot of said jaw having a width insufficient for passage of said bushing therethrough,

4;. An universal joint comprising a block having a bearing pin thereon, a bushing pin, a slotted jaw, andJneansJ for cl a-1nping said jaw upon .said bushing, the

0 said jaw permittingremoval of said jaw from said .pin transversely. thereto.

5. An universal joint comprising a" block having a bearing pin thereon, a bushing for jaw, meansfor clamping bushing, -the slot of said aw having a width insuflicient for passage j of said bushing therethrough, displacement g longitudinally of "said pin of said bush being prevented. T 6.- An universal havingabearing pin thereon, .a bushingfor j oint: comprising "a block said pin, a slotted jaw, and nieans for clamp ing said jaw' upon said bushing, the slotof said jaw having a width insuflicientfor R5 [sage of said 'bushi'ngtherethrough and su -f cient. to allowwithdrawal of said jaw" from .SaldpiDfl ,-7. An universaljoint comprising a block having a bearing pin thereon,.a bushing for said said pin, a-slotted jaw, means for clampingbushing 'therethrough and suflicient to allow withdrawal of said jaw from said in, displacement of said bushinglongitudmall'y of pin beingprevented. l.

said "pin, as'lotted jaw, means for clamping 1 said jaw upon said bushing, the slot o'fsaid, jaw permitting passage. of said jaw from p pin transversely thereto, displacement" of said bushing longitudinally offsai'd pin being prevented: I if universal .joint'comprising a blobk having a bearing pin thereon, a bushing for -ing, sai

9. An universal joint comprising a block having a bearing pin thereon, a bushing for said pin, a 113W comprising spaced integral members, a bolt for clamping said jaw mem- 5 bers upon said bushing, said bushing interlocking with said bolt to prevent'movement of said bushing longitudinally of said pint 10. An universal joint comprising a block having a bearing pin thereon, a bushing for said pin, a jaw comprising spaced integral members, a bolt for clam-ping said jaw members upon said bushing, said bushing having a groove receiving sald bolt.

11. An universal oint comprising a block having a bearing pin thereon, a bushing for said pin, a jaw member, a bolt for clamping said jaw member upon said bushing, said bushing having a big engaging said bolt.

12. An universal joint comprising a block bushing, and a bolt for clamping said bifur-' cated member upon said bushing, said bushing having a groove receiving saidbolt whereby said bushing .is held against movement longitudinally of said pin.

having a bearing pin thereon, abushing for 14 An universal joint comprising a block having a bearing pin thereon, a bushing for said pin,- a bifurcated member having an opening allowing insertion of saidp'in therethrough and less than'the diameter of said bushing, and a bolt for clamping said bi- I furcated member upon said bushing, said bushing interlocking with; said bolt to pre-,

vent rotation of said bushing and movement thereof longitudinally of said pin. 5

15. An universal oint comprlsing a block p I having a bearing pin thereon, a bushing for saidpin, a bifurcated member having an opening for receiving said bushing only in opening between the arms of said bifurcated member havingv a width .suflicient to'allow passage of said member from said pin, and means for clamping said' bifurcated member upon said bushing,-

16. An universal joint comprising a block having a'bearing pin thereon, a bushing for said pin, a bifurcated member having an opening for receiving said bushing only in a direction longitudinally of said pin, said opening between the arms of said bifurcated member having va width suflicient to allow passage of said member f om said'pin, and a bolt extending, throng saidbifurcated member and interlocking with said bushing to prevent longitudinal and rotative movement thereof.

In testimony whereof I- have hereunto affixed my signature this 27th day of November,; 1915. v I JOHN W. VAN DYKE.

a direction longitudinally of said pin, said. 

